Ruling · Sūrya Ṣaṣṭhī (Chhath) · 2023

Saturday 18 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 9 min 49 s.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Saturday 18 November

Taken. The only midday Ṣaṣṭhī reaches.

madhyāhna begins 11:39  12:27 madhyāhna ends
Ṣaṣṭhī begins 11:48:48
10:5111:1511:3912:0312:2712:5113:15

38 of 48 minutes covered, the last 38

Midday of Sunday 19 November

Ṣaṣṭhī is absent from madhyāhna. Not taken.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

0 of 48 minutes covered

Ṣaṣṭhī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Ṣaṣṭhī runs from 11:49 on Sat 18 Nov to 09:54 on Sun 19 Nov.

    2023-11-18T03:48:49Z → 2023-11-19T01:53:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 18th, 11:39–12:27 on the 19th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Ṣaṣṭhī must be present during madhyāhna. It covers 38 of 48 minutes on the 18th and 0 of 48 on the 19th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 589 s

  5. 05

    Ruling

    Sūrya Ṣaṣṭhī, Baoding, 2023: Saturday 18 November.

    confidence: determinate

Say it like this

In Baoding, Sūrya Ṣaṣṭhī (Chhath) 2023 falls on Saturday 18 November. Ṣaṣṭhī runs from 11:49 on Sat 18 Nov to 09:54 on Sun 19 Nov and covers 38 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/2023/surya-shashthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 18 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 18 Nov
compat-drikpanchangComparison profileSat 18 Nov
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/surya-shashthi · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Ṣaṣṭhī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“S 6 Nadi sasthi, Skanda sasthi (Madras), Surya sasthi, Chhat (Bihar).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceṢaṣṭhīMadhyāhna 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles19:49 → 17:5411:1448 min11:140 min18 Nov
Chicago21:49 → 19:5411:1248 min11:120 min18 Nov
Jersey City22:49 → 20:5411:1748 min11:170 min18 Nov
Port of Spain23:49 → 21:5411:2748 min11:270 min18 Nov
London03:49 → 01:5411:2148 min11:220 min18 Nov
Durban05:49 → 03:5411:1748 min11:170 min18 Nov
Dubai07:49 → 05:5411:4048 min11:400 min18 Nov
Delhi09:19 → 07:2411:4248 min11:420 min18 Nov
Kolkata09:19 → 07:2410:5748 min10:580 min18 Nov
Singapore11:49 → 09:5412:2648 min12:260 min18 Nov
Sydney14:49 → 12:5412:160 min12:1737 min19 Nov
Suva15:49 → 13:5411:270 min11:2848 min19 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
surya-shashthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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